If very pure silicon is doped with a small amount of boron, the ...

[folubunmi]

If very pure silicon is doped with a small amount of boron, the resulting crystal is called a(n)
 
  A) solar cell.
  B) n-type semiconductor
  C) p-type semiconductor
  D) battery.

Question 2

Iron plays a central role in
 
  A) protein synthesis.
  B) nucleic acid replication.
  C) hemoglobin structure and oxygen transport.
  D) bones.

[TheDev123]

Answer to Question 1

C

Answer to Question 2

C

[folubunmi]

Excellent

[zacnyjessica]

Thanks for the timely response, appreciate it